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The number that is divisible by both '3' and '5' will also be divisible by '15' 
Hence, there are '53' numbers till '800' which are divisible by both '3' and '5'.
A and B together can complete a task in 10 days, B and C can do in 15 days, and C and A together can do it in 12 days. How long will they take to compl...
A car running with a speed of 69 km/hr takes 28 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it tak...
Pipes A and B can fill an empty tank in 6 and 8 hours respectively, while pipe C can empty the full tank in 10 hours. If all three pipes are opened toge...
P, Q and R can complete a work in 10 days. 20 days and 30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q an...
How will you write 3.78 hours in hours, minutes, and seconds?
Two cars start from a house at an interval of 10 minutes and travel at a speed of 20 km/hr. With how much speed (km/hr.) should a woman coming from the ...
A can do 50% of the job in 16 days, B can do 1/4th of the job in 24 days. In how many days can they do 3/4th of the job working together?
3 men dig a hole in 10 days. How many days would it take for 5 men to dig the same hole ?
A and B can complete a work in 40 and 60 days respectively. They started a work which is to be completed in 20 days. But it was found that they are lagg...
